In an effort to get a baseball 75 mm diameter 15kg mass to h

In an effort to get a baseball (75 mm diameter, .15kg mass) to hit the ground with as high of a velocity as possible, a baseball pitcher throws a ball downward from a skyscraper. The ball leaves his hand at a speed of 47m/s in a downward direction.

1.Determine the magnitude and direction of the resulting forces on the baseball.

Solution

As, the baseball pitcher throws the ball in vertically downward direction from the skyscrapper only accelaration due to gravity would be acting on the ball after the release of the ball. So, as the mass of ball is 15KG So, force acting on ball would be similar to body under free fall = 15*9.81 = 147.15 N in vertically downward direction.